In the Target Vulnerability box, type the ID of the plugin that you want to recast. For example, 51192.

Note: If the plugin ID corresponds to a Nessus plugin, the Original Severity indicator changes to match the default severity of the vulnerability. The Original Severity indicator does not change if another type of plugin is used.

In the Set to box, select the severity level for the vulnerability.

In the Target box, select the target of the recast rule. By default, rules target all assets.

In the text box, type one or more targets for the rule. You can type a comma-delimited list that includes any combination of IP addresses, IP ranges, CIDR, and hostnames.

(Optional) In the Expiration box, set an expiration date for the rule. This is only necessary if you want the rule to expire. By default, the rule applies indefinitely.

(Optional) In the Comments box, type a description of the rule. This text is only visible if the rule is modified and has no functional effect.

Click Save.

Tenable.io may take some time to apply the rule to existing vulnerabilities, depending on the system load and the number of matching vulnerabilities. The change is reflected on your workbench, where a label appears to indicate how many instances of affected vulnerabilities have been recast.